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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
4
|
| pubmed:dateCreated |
1991-11-1
|
| pubmed:abstractText |
Imaging of the flow convergence region (FCR) proximal to a regurgitant orifice has been shown to provide a method for quantifying the regurgitant flow rate. According to the continuity principle, the FCR is constituted by concentric hemispheric isovelocity surfaces centered at the orifice. The flow rate is constant across all isovelocity surfaces and equals the flow rate through the orifice. For any isovelocity surface the flow rate (Q) is given by: Q = 2 pi r2 Vr, where 2 pi r2 is the area of the hemisphere and Vr is the velocity at the radial distance (r) from the orifice.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
AIM
|
| pubmed:status |
MEDLINE
|
| pubmed:month |
Oct
|
| pubmed:issn |
0009-7322
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
84
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
1481-9
|
| pubmed:dateRevised |
2010-3-24
|
| pubmed:meshHeading |
pubmed-meshheading:1914090-Angiocardiography,
pubmed-meshheading:1914090-Blood Flow Velocity,
pubmed-meshheading:1914090-Coronary Circulation,
pubmed-meshheading:1914090-Echocardiography, Doppler,
pubmed-meshheading:1914090-Female,
pubmed-meshheading:1914090-Heart Catheterization,
pubmed-meshheading:1914090-Humans,
pubmed-meshheading:1914090-Male,
pubmed-meshheading:1914090-Middle Aged,
pubmed-meshheading:1914090-Mitral Valve,
pubmed-meshheading:1914090-Mitral Valve Insufficiency
|
| pubmed:year |
1991
|
| pubmed:articleTitle |
A new method for quantitation of mitral regurgitation based on color flow Doppler imaging of flow convergence proximal to regurgitant orifice.
|
| pubmed:affiliation |
IRCCS Policlinico S. Matteo, Division of Cardiology, Pavia, Italy.
|
| pubmed:publicationType |
Journal Article
|